subject
Physics, 27.08.2020 19:01 saraaaaaaaa20

Some of the energy the car gained as it was pulled was lost because of heat from friction. The rest of the energy was transformed into potential energy. How much potential energy does the roller coaster car have at the top of the first hill? Use PE = m × g × h, and assume that g = 9.8 m/sec2.

ansver
Answers: 1

Another question on Physics

question
Physics, 21.06.2019 22:20
Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 11.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.80 m/s; (b) he is then lifted at the constant speed of 4.80 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 78.0 kg rescue by the force lifting him during each stage
Answers: 2
question
Physics, 22.06.2019 04:00
Acompound machine is also called a machine. a. force b. simple c. complex d. directional
Answers: 1
question
Physics, 22.06.2019 06:30
Apebble is thrown into a calm lake, ripples are formed from the center and move outward. the water particles in the lake travel in a circular pattern that moves up and down on the surface of a lake, and the energy travels a) diagonally. b) downward. c) horizontally. d) upward.
Answers: 2
question
Physics, 22.06.2019 08:30
You win the lottery and decide to impress your friends by exhibiting a million-dollar cube of gold. at the time, gold is selling for $ 426.60 per troy ounce, and 1.0000 troy ounce equals 31.1035 g. -how tall would your million-dollar cube be? en cm
Answers: 2
You know the right answer?
Some of the energy the car gained as it was pulled was lost because of heat from friction. The rest...
Questions